import pandas as pd
import numpy as np

s = pd.Series(["a", "b", "c"])
print(s)

s = pd.Series({"0": "a", "1": "b", "2": "c"})
print(s)

data = np.array(["a", "b", "c"])
s = pd.Series(data)
print(s)

print(s[1])
print("a" in s)
